NET LOSS PER COMMON SHARE ATTRIBUTABLE TO VERINT SYSTEMS INC. NET LOSS PER COMMON SHARE ATTRIBUTABLE TO VERINT SYSTEMS INC. - CALCULATION (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Apr. 30, 2016
Apr. 30, 2015
Net Income Attributable to Verint Systems Inc. [Abstract]    
Net (loss) income $ (16,193) $ 731
Net income attributable to noncontrolling interest 1,263 1,147
Net loss attributable to Verint Systems Inc. $ (17,456) $ (416)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]    
Basic (in shares) 62,258,000 61,041,000
Dilutive effect of employee equity award plans (in shares) 0 0
Dilutive effect of 1.50% convertible senior notes (in shares) 0 0
Dilutive effect of warrants (in shares) 0 0
Diluted (in shares) 62,258,000 61,041,000
Net Loss Per Common Share Attributable to Verint Systems Inc. [Abstract]    
Basic (in dollars per share) $ (0.28) $ (0.01)
Diluted (in dollars per share) $ (0.28) $ (0.01)